Multisig support about zeronet

[HelloZeroNet]

Yes, i have already had some thoughts about it:
It can be easily solved by adding the allowed signers public key and sign to content.json like this:

"signers": [
 {"Signer1Addr": "Signer1sign"},
 {"Signer2Addr": "Signer2sign"},
 {"Signer3Addr": "Signer3sign"}
],
"signers_required": 2,

So when someone got a new content.json, he checks if it has the required number (definied in signers_required) of correct signs.

Maybe we should combine it with some kind of permission system, so you could define rules like:
"Signer4Addr" has permission to modify "messages/Signer4Addr.json" file, but not anything else. (size could be possible limit too)

But at the moment I want to keep ZeroNet as simple as possible, and only adding new features if we has the application that could use benefits of it.

[HelloZeroNet]

Its implemented in 0.2.0, but its not deep tested yet

[TheNain38]

Can be closed?

[iShift]

Can be closed?

[vlad20012]

ContentManager.py:460 Still not implemented

[rllola]

See : #975

[canewsin]

https://proxy.zeronet.dev/1SCribeHs1nz8m3vXipP84oyXUy4nf2ZD/?Post:14

[ArchisGokhale]

not implemented yet

[canewsin]

@ArchisGokhale read the scribe post for context, multisig is possible with current code.